<template>
  <div class="box">
    <h3>红盒子</h3>
  </div>
</template>

<script>
export default {

}
</script>

<style lang="less" scoped>
.box {
  height: 100px;
  width: 100px;
  background-color: red;
}
// ::v-deep
/deep/ h3 {
  color: pink;
}
</style>